nic

  1. B

    Upgraded PVE from 8.4 to 9.2 - Networking not consistent

    Hello, I've upgrade my small PVE cluster from 8.4 to 9.2.3 and I've noticed that the network settings on the PVE hosts (3) are not consistent in terms of interfaces. IE: pve-manager/9.2.3/d0fde103346cf89a Linux 7.0.6-2-pve (2026-05-29T11:08Z) Node1 & 2: Node 3: As you can see, Node 1&2...
  2. S

    Single port on NIC randomly disconnecting

    Hey, i am running a 3 node PVE + Ceph Cluster on 3x Minesforum MS-A2. The nodes are running identical hardware. On one of the 3 nodes At supposedly random times one 2.5Gbit Port on a RTL8125 2.5GbE Controller (rev 05) NIC disconnects. The affected port is used for the guest traffic thats...
  3. W

    Intel e1000e Regression Causing Proxmox Host Freezes — Resolved by Removing Onboard NIC

    Problem Summary: Two Proxmox nodes with Intel onboard NICs (I217/I219 family) suddenly began experiencing intermittent freezes, SSH drops, and bridge instability. Both nodes had been stable for years. The failures began simultaneously after recent kernel updates. Symptoms Observed: SSH...
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    [SOLVED] Proxmox VE update to 9.1.5, now the network card is slow

    Hello, I recently did an in place upgrade to PVE 9, everything seems to be working fine but now the network card seems to be slow. I run pfSense in a VM with a couple of network interfaces passed through. I have not made any changes to the VM recently and no hardware change to the system but the...
  5. A

    Network disconnects after some amount of time - Intel I225-V in Minisforum HM80

    Hello everyone, I have been using Proxmox on my 2-node homelab for a while now, but one of my nodes keeps disconnecting from the network entirely. It seems to happen randomly after a couple of hours, and I haven't been able to find a good reason why it would. I have two nics in my PC, and both...
  6. D

    realtek nic issue

    New to proxmox and networking here. I recently got everything installed/set up however one of my 2.5 gb ethernet ports, the 2x 10gb ports and i think the wifi all show as inactive. I've done some reading and i guess it comes down to an issue with the realtek RTL8125? I have connectivity on the...
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    [SOLVED] Shared storage with different IP (NFS)

    Hello, I have two servers connected to a NAS. Both servers are connected to the NAS via a switch (1Gbps network). However, I have a direct link between server 1 and the NAS with a 10Gbps card on both sides. I cannot put 10 gbps card in server 2. So I have configured a private network between...
  8. G

    DHCP Blocked on VM by NIC Firewall

    Hello everyone, I’m running into a serious issue with DHCP when using the Proxmox VE firewall. I want to summarize the problem here and hopefully get confirmation or solutions from the community. Setup: VM: Ubuntu 24.04 Proxmox VE: latest stable release Network setup: bridged (vmbr0) VM...
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    [SOLVED] Newly added NIC does not work in cluster nodes

    Hello, it is my first thread so sorry in advance for errors. So just some context. I have an cluster with 6 nodes, all on PVE 8.4- Currently they are running on the internal network interface on the mainboard. I need to add an NIC and let it run over it and use the internal one for intel KVM...
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    Lost Access to Proxmox over network after lightning (resolved)

    I'll start off by admitting I am very new to proxmox - I had really only just gotten it set up and some containers running on it when this happened - so I apologize if I am not totally accurate with my terms. I am running Proxmox on an old Dell PowerEdge R330. This has a dedicated IDRAC port...
  11. K

    Link detected: no on 4 nodes with 3 different NIC.

    Hi, Can someone point me in the right direction? I have 4 nodes with Proxmox VE. I have 3 different 10G NICs. None of them seem to work on Proxmox, but they do work on a Live CD on other Linux distributions. Example: NIC port LED = YES OS Link detected = No Switch port LED = YES Node 3...
  12. D

    Strange Issue Using Virtio on 10Gb Network Adapters

    Hello, I'm having some strange behavior when using an i225-LM, x520-da or x550-t2 NIC and the Virtio network adapter in Proxmox. Those cards use theigb and ixgbe drivers, respectively. The issue only occurs on VMs in which I use Moonlight/Sunshine to gamestream from a VM with a GPU passed...
  13. K

    10Gb NICs compatibility with proxmox 8.4.1

    Hello I would like to know if this NICs are compatible out of the box (no drivers needed to be installed or possible troubleshooting) with the proxmox 8.4.1 HP Ethernet 10Gb 2-Port 561FLR-T Adapter - HSTNS-B007 Intel X540-T2 X540-AT2 10G PCI-E Dual RJ45 Ports Thanks please respond I need...
  14. A

    SATA controller (PCIe passthrough) and NIC on the same IOMMU group

    Hello, I've dived into many discussions/threads/workarounds before writing this thread that I hope it will better clarify my situation. I'm currently running Proxmox on an intel based system with a Intel Xeon E-2174G CPU. Currently, I have passed through the PCIe SATA controller to a NAS...
  15. B

    How To Passthrough All VLAN To Guest Nic

    Hello,Everyone! I am trying to set up a guest virtual machine to deploy zeek. So I want to passthrough all vlan to the guest nic. I had been modified my switch to allow all vlan passthrough to the pve host nic. I can use tcpdump to captured packets that belongs to other vlan.(L2 and above) But...
  16. H

    bridgeless network for QEMU? (ie. only TAP, and manual/hookscript connections to host/other VMs)

    I'm looking for a solution to drop the need for intermediate bridges for a corner/edge case where I need the VMs to have "direct" P2P links ONLY, and typically to the host too. Reason: I want to use OpenFabric as a IGP, and it requires P2P links only , ie, only 2 parties to a link. As I add...
  17. O

    2.5GbE NIC - Intel or Realtek?

    Hi, I want to buy a 2.5GbE NIC for my Proxmox servers. I wonder what would be a better choice... I was thinking about Intel I226-V. Supposedly there are fewer problems with it than Intel I225-V. Or maybe choose something with Realtek chipset? If so, which Realtek chipset works best with...
  18. L

    Realtek NIC randomly disappers

    Hi all, I have. Proxmox VE 8.2 running for about a year and now started seeing a rather strange behavior. Upon a restart, the NICs randomly disappear. I have an on-board LAN and a PCIe quad port card. When proxmox starts, lspci usually shows all 5 devices although it has happened a few times...
  19. R

    [SOLVED] Traffic separation and nics - how to plan the network?

    Hi, we're building an 4 node PVE cluster with NVME Ceph storage. Available Nics: We have several nics available: Nic1: 2 x 10G + 2 x 1G Nic2: 2 x 10G Nic3: 2 x 100G Traffic/Networks: Now we need (I think) the following traffic separations: PVE Management PVE Cluster & Corosync Ceph (public)...
  20. R

    Glass not working.

    Good morning! I'm completely green as it comes to glass. So I ordered the next hardware, hoping I understood enough from the info I gathered all over the place. 2 NIC's: Intel X520-DA1, 82599EN (https://www.amazon.nl/-/en/dp/B01GHTXHMK) Intel X520-DA2, 82599ES...